Gold Lifetime Member
Join Date: Jun 2009
Location: Tomball TX, DeRidder LA
Re: Paint first or Motor first
Interesting question. If there was some way to prevent the final paint from being scratched, the question would never be asked. Unfortunately, I donít know of any way to guarantee this catastrophe would not happen if you move big heavy sharp objects near the paint.
You mentioned the body has been test fitted and it is correct. Did you test fit everything? I experienced that my stainless trim on the back corner next to the trunk lid did not fit my new quarter panel. I had to reshape the curve on the quarter panel. The little vent in the door jamb would not fit in the quarter panel. I drilled holes in my driver side fender for the emblems. I had to weld my first holes shut and start again. My reproduction bumper was bent and would have scratched my quarter panel if I did not test fit it before final paint. My door handles would not fit. It would have been detrimental if I started installing these items after final paint.
Was your car sandblasted? Sand can hide in the smallest places. Your paint gun will blow the sand out its hiding places onto your wet paint. Are all the joints seam sealed? My point is there could be a lot more work to be done before paint.
The engine and transmission that is going into the car the same as the ones that came out? If they are different, I would test fit before painting the firewall. The engine includes the headers, front accessories, distributor, valve covers. Test fit the wiper motor. Something might not fit and hit the shiny paint.
Are you adding anything new under the dash? I am adding an AC unit. I will have to drill holes in the firewall area for the hoses.
If your car has a lot of reproduction parts or is modified, then test fit the parts before final paint.
If your car is stock, stab the engine and transmission in the car after paint.